| /* |
| ** Copyright (c) 2012 The Khronos Group Inc. |
| ** |
| ** Permission is hereby granted, free of charge, to any person obtaining a |
| ** copy of this software and/or associated documentation files (the |
| ** "Materials"), to deal in the Materials without restriction, including |
| ** without limitation the rights to use, copy, modify, merge, publish, |
| ** distribute, sublicense, and/or sell copies of the Materials, and to |
| ** permit persons to whom the Materials are furnished to do so, subject to |
| ** the following conditions: |
| ** |
| ** The above copyright notice and this permission notice shall be included |
| ** in all copies or substantial portions of the Materials. |
| ** |
| ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
| */ |
| |
| function generateTest(internalFormat, pixelFormat, pixelType, prologue, resourcePath, defaultContextVersion) { |
| var wtu = WebGLTestUtils; |
| var tiu = TexImageUtils; |
| var gl = null; |
| var successfullyParsed = false; |
| var whiteColor = [255, 255, 255, 255]; |
| var redColor = [255, 0, 0, 255]; |
| var greenColor = [0, 255, 0, 255]; |
| var semiTransparentRedColor = [127, 0, 0, 127]; |
| var semiTransparentGreenColor = [0, 127, 0, 127]; |
| var repeatCount; |
| |
| function replicateRedChannel(color) |
| { |
| color[1] = color[0]; |
| color[2] = color[0]; |
| } |
| |
| function zapColorChannels(color) |
| { |
| color[0] = 0; |
| color[1] = 0; |
| color[2] = 0; |
| } |
| |
| function setAlphaChannelTo1(color) |
| { |
| color[3] = 255; |
| } |
| |
| function replicateAllRedChannels() |
| { |
| replicateRedChannel(redColor); |
| replicateRedChannel(semiTransparentRedColor); |
| replicateRedChannel(greenColor); |
| replicateRedChannel(semiTransparentGreenColor); |
| } |
| |
| function setAllAlphaChannelsTo1() |
| { |
| setAlphaChannelTo1(redColor); |
| setAlphaChannelTo1(semiTransparentRedColor); |
| setAlphaChannelTo1(greenColor); |
| setAlphaChannelTo1(semiTransparentGreenColor); |
| } |
| |
| function repeatCountForTextureFormat(internalFormat, pixelFormat, pixelType) |
| { |
| // There were bugs in early WebGL 1.0 implementations when repeatedly uploading canvas |
| // elements into textures. In response, this test was changed into a regression test by |
| // repeating all of the cases multiple times. Unfortunately, this means that adding a new |
| // case above significantly increases the run time of the test suite. The problem is made |
| // even worse by the addition of many more texture formats in WebGL 2.0. |
| // |
| // Doing repeated runs with just a couple of WebGL 1.0's supported texture formats acts as a |
| // sufficient regression test for the old bugs. For this reason the test has been changed to |
| // only repeat for those texture formats. |
| if ((internalFormat == 'RGBA' && pixelFormat == 'RGBA' && pixelType == 'UNSIGNED_BYTE') || |
| (internalFormat == 'RGB' && pixelFormat == 'RGB' && pixelType == 'UNSIGNED_BYTE')) { |
| return 4; |
| } |
| |
| return 1; |
| } |
| |
| function init() |
| { |
| description('Verify texImage2D and texSubImage2D code paths taking canvas elements (' + internalFormat + '/' + pixelFormat + '/' + pixelType + ')'); |
| |
| // Set the default context version while still allowing the webglVersion URL query string to override it. |
| wtu.setDefault3DContextVersion(defaultContextVersion); |
| gl = wtu.create3DContext("example"); |
| |
| if (!prologue(gl)) { |
| finishTest(); |
| return; |
| } |
| |
| repeatCount = repeatCountForTextureFormat(internalFormat, pixelFormat, pixelType); |
| |
| switch (gl[pixelFormat]) { |
| case gl.RED: |
| case gl.RED_INTEGER: |
| // Zap green and blue channels. |
| whiteColor[1] = 0; |
| whiteColor[2] = 0; |
| greenColor[1] = 0; |
| semiTransparentGreenColor[1] = 0; |
| // Alpha channel is 1.0. |
| setAllAlphaChannelsTo1(); |
| break; |
| case gl.RG: |
| case gl.RG_INTEGER: |
| // Zap blue channel. |
| whiteColor[2] = 0; |
| // Alpha channel is 1.0. |
| setAllAlphaChannelsTo1(); |
| break; |
| case gl.LUMINANCE: |
| // Replicate red channels. |
| replicateAllRedChannels(); |
| // Alpha channel is 1.0. |
| setAllAlphaChannelsTo1(); |
| break; |
| case gl.ALPHA: |
| // Red, green and blue channels are all 0.0. |
| zapColorChannels(redColor); |
| zapColorChannels(semiTransparentRedColor); |
| zapColorChannels(greenColor); |
| zapColorChannels(semiTransparentGreenColor); |
| zapColorChannels(whiteColor); |
| break; |
| case gl.LUMINANCE_ALPHA: |
| // Replicate red channels. |
| replicateAllRedChannels(); |
| break; |
| case gl.RGB: |
| case gl.RGB_INTEGER: |
| // Alpha channel is 1.0. |
| setAllAlphaChannelsTo1(); |
| break; |
| default: |
| break; |
| } |
| |
| switch (gl[internalFormat]) { |
| case gl.SRGB8: |
| case gl.SRGB8_ALPHA8: |
| semiTransparentRedColor = wtu.sRGBToLinear(semiTransparentRedColor); |
| semiTransparentGreenColor = wtu.sRGBToLinear(semiTransparentGreenColor); |
| break; |
| case gl.RGBA8UI: |
| // For int and uint textures, TexImageUtils outputs the maximum value (in this case, |
| // 255) for the alpha channel all the time because of differences in behavior when |
| // sampling integer textures with and without alpha channels. Since changing this |
| // behavior may have large impact across the test suite, leave it as is for now. |
| setAllAlphaChannelsTo1(); |
| break; |
| } |
| |
| gl.clearColor(0,0,0,1); |
| gl.clearDepth(1); |
| |
| var testCanvas = document.createElement('canvas'); |
| runTest(testCanvas); |
| //document.body.appendChild(testCanvas); |
| } |
| |
| function setCanvasToRedGreen(ctx) { |
| var width = ctx.canvas.width; |
| var height = ctx.canvas.height; |
| var halfHeight = Math.floor(height / 2); |
| ctx.clearRect(0, 0, width, height); |
| ctx.fillStyle = "#ff0000"; |
| ctx.fillRect(0, 0, width, halfHeight); |
| ctx.fillStyle = "#00ff00"; |
| ctx.fillRect(0, halfHeight, width, height - halfHeight); |
| } |
| |
| function setCanvasToSemiTransparentRedGreen(ctx) { |
| var width = ctx.canvas.width; |
| var height = ctx.canvas.height; |
| var halfHeight = Math.floor(height / 2); |
| ctx.clearRect(0, 0, width, height); |
| ctx.fillStyle = "rgba(127, 0, 0, 0.5)"; |
| ctx.fillRect(0, 0, width, halfHeight); |
| ctx.fillStyle = "rgba(0, 127, 0, 0.5)"; |
| ctx.fillRect(0, halfHeight, width, height - halfHeight); |
| } |
| |
| function drawTextInCanvas(ctx, bindingTarget) { |
| var width = ctx.canvas.width; |
| var height = ctx.canvas.height; |
| ctx.fillStyle = "#ffffff"; |
| ctx.fillRect(0, 0, width, height); |
| ctx.font = '20pt Arial'; |
| ctx.fillStyle = 'black'; |
| ctx.textAlign = "center"; |
| ctx.textBaseline = "middle"; |
| ctx.fillText("1234567890", width / 2, height / 4); |
| } |
| |
| function setCanvasTo257x257(ctx, bindingTarget) { |
| ctx.canvas.width = 257; |
| ctx.canvas.height = 257; |
| setCanvasToRedGreen(ctx); |
| } |
| |
| function setCanvasTo257x257SemiTransparent(ctx, bindingTarget) { |
| ctx.canvas.width = 257; |
| ctx.canvas.height = 257; |
| setCanvasToSemiTransparentRedGreen(ctx); |
| } |
| |
| function setCanvasToMin(ctx, bindingTarget) { |
| if (bindingTarget == gl.TEXTURE_CUBE_MAP) { |
| // cube map texture must be square. |
| ctx.canvas.width = 2; |
| } else { |
| ctx.canvas.width = 1; |
| } |
| ctx.canvas.height = 2; |
| setCanvasToRedGreen(ctx); |
| } |
| |
| function setCanvasToMinSemiTransparent(ctx, bindingTarget) { |
| if (bindingTarget == gl.TEXTURE_CUBE_MAP) { |
| // cube map texture must be square. |
| ctx.canvas.width = 2; |
| } else { |
| ctx.canvas.width = 1; |
| } |
| ctx.canvas.height = 2; |
| setCanvasToSemiTransparentRedGreen(ctx); |
| } |
| |
| function runOneIteration(canvas, useTexSubImage2D, flipY, semiTransparent, program, bindingTarget, opt_texture, opt_fontTest) |
| { |
| debug('Testing ' + (useTexSubImage2D ? 'texSubImage2D' : 'texImage2D') + |
| ' with flipY=' + flipY + ' bindingTarget=' + (bindingTarget == gl.TEXTURE_2D ? 'TEXTURE_2D' : 'TEXTURE_CUBE_MAP') + |
| ' canvas size: ' + canvas.width + 'x' + canvas.height + |
| (opt_fontTest ? " with fonts" : " with" + (semiTransparent ? " semi-transparent" : "") + " red-green")); |
| gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| if (!opt_texture) { |
| var texture = gl.createTexture(); |
| // Bind the texture to texture unit 0 |
| gl.bindTexture(bindingTarget, texture); |
| // Set up texture parameters |
| gl.texParameteri(bindingTarget, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| gl.texParameteri(bindingTarget, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); |
| gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); |
| } else { |
| var texture = opt_texture; |
| } |
| // Set up pixel store parameters |
| gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY); |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
| wtu.failIfGLError(gl, 'gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);'); |
| var targets = [gl.TEXTURE_2D]; |
| if (bindingTarget == gl.TEXTURE_CUBE_MAP) { |
| targets = [gl.TEXTURE_CUBE_MAP_POSITIVE_X, |
| gl.TEXTURE_CUBE_MAP_NEGATIVE_X, |
| gl.TEXTURE_CUBE_MAP_POSITIVE_Y, |
| gl.TEXTURE_CUBE_MAP_NEGATIVE_Y, |
| gl.TEXTURE_CUBE_MAP_POSITIVE_Z, |
| gl.TEXTURE_CUBE_MAP_NEGATIVE_Z]; |
| } |
| // Upload the image into the texture |
| for (var tt = 0; tt < targets.length; ++tt) { |
| // Initialize the texture to black first |
| if (useTexSubImage2D) { |
| gl.texImage2D(targets[tt], 0, gl[internalFormat], canvas.width, canvas.height, 0, |
| gl[pixelFormat], gl[pixelType], null); |
| gl.texSubImage2D(targets[tt], 0, 0, 0, gl[pixelFormat], gl[pixelType], canvas); |
| } else { |
| gl.texImage2D(targets[tt], 0, gl[internalFormat], gl[pixelFormat], gl[pixelType], canvas); |
| } |
| } |
| |
| var width = gl.canvas.width; |
| var height = gl.canvas.height; |
| var halfWidth = Math.floor(width / 2); |
| var halfHeight = Math.floor(height / 2); |
| var top = flipY ? 0 : (height - halfHeight); |
| var bottom = flipY ? (height - halfHeight) : 0; |
| |
| var loc; |
| var skipCorner = false; |
| if (bindingTarget == gl.TEXTURE_CUBE_MAP) { |
| loc = gl.getUniformLocation(program, "face"); |
| switch (gl[pixelFormat]) { |
| case gl.RED_INTEGER: |
| case gl.RG_INTEGER: |
| case gl.RGB_INTEGER: |
| case gl.RGBA_INTEGER: |
| // https://github.com/KhronosGroup/WebGL/issues/1819 |
| skipCorner = true; |
| break; |
| } |
| } |
| |
| for (var tt = 0; tt < targets.length; ++tt) { |
| if (bindingTarget == gl.TEXTURE_CUBE_MAP) { |
| gl.uniform1i(loc, targets[tt]); |
| } |
| // Draw the triangles |
| wtu.clearAndDrawUnitQuad(gl, [0, 255, 0, 255]); |
| |
| if (opt_fontTest) { |
| // check half is a solid color. |
| wtu.checkCanvasRect( |
| gl, 0, top, width, halfHeight, |
| whiteColor, |
| "should be white"); |
| // check other half is not a solid color. |
| wtu.checkCanvasRectColor( |
| gl, 0, bottom, width, halfHeight, |
| whiteColor, 0, |
| function() { |
| testFailed("font missing"); |
| }, |
| function() { |
| testPassed("font rendered"); |
| }, |
| debug); |
| } else { |
| var localRed = semiTransparent ? semiTransparentRedColor : redColor; |
| var localGreen = semiTransparent ? semiTransparentGreenColor : greenColor; |
| |
| // Allow a tolerance for premultiplication/unmultiplication, especially for texture |
| // formats with lower bit depths. |
| var tolerance = 0; |
| if (semiTransparent) { |
| tolerance = 3; |
| if (pixelType == 'UNSIGNED_SHORT_5_6_5' || internalFormat == 'RGB565') { |
| tolerance = 6; |
| } else if (pixelType == 'UNSIGNED_SHORT_4_4_4_4' || internalFormat == 'RGBA4') { |
| tolerance = 9; |
| } else if (pixelType == 'UNSIGNED_SHORT_5_5_5_1' || internalFormat == 'RGB5_A1') { |
| // Semi-transparent values are allowed to convert to either 1 or 0 for this |
| // single-bit alpha format per OpenGL ES 3.0.5 section 2.1.6.2, "Conversion |
| // from Floating-Point to Normalized Fixed-Point". Ignore alpha for these |
| // tests. |
| tolerance = 6; |
| localRed = localRed.slice(0, 3); |
| localGreen = localGreen.slice(0, 3); |
| } else if (internalFormat == 'RGB10_A2') { |
| // The alpha channel is too low-resolution for any meaningful comparisons. |
| localRed = localRed.slice(0, 3); |
| localGreen = localGreen.slice(0, 3); |
| } |
| } |
| |
| // Check the top and bottom halves and make sure they have the right color. |
| debug("Checking " + (flipY ? "top" : "bottom")); |
| wtu.checkCanvasRect(gl, 0, bottom, (skipCorner && flipY) ? halfWidth : width, halfHeight, localRed, |
| "shouldBe " + localRed, tolerance); |
| debug("Checking " + (flipY ? "bottom" : "top")); |
| wtu.checkCanvasRect(gl, 0, top, (skipCorner && !flipY) ? halfWidth : width, halfHeight, localGreen, |
| "shouldBe " + localGreen, tolerance); |
| } |
| |
| if (!useTexSubImage2D && pixelFormat == "RGBA") { |
| if (pixelType == "FLOAT") { |
| // Attempt to set a pixel in the texture to ensure the texture was |
| // actually created with floats. Regression test for http://crbug.com/484968 |
| var pixels = new Float32Array([1000.0, 1000.0, 1000.0, 1000.0]); |
| gl.texSubImage2D(targets[tt], 0, 0, 0, 1, 1, gl[pixelFormat], gl[pixelType], pixels); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Texture should be backed by floats"); |
| } else if (pixelType == "HALF_FLOAT_OES" || pixelType == "HALF_FLOAT") { |
| // Attempt to set a pixel in the texture to ensure the texture was |
| // actually created with half-floats. Regression test for http://crbug.com/484968 |
| var halfFloatTenK = 0x70E2; // Half float 10000 |
| var pixels = new Uint16Array([halfFloatTenK, halfFloatTenK, halfFloatTenK, halfFloatTenK]); |
| gl.texSubImage2D(targets[tt], 0, 0, 0, 1, 1, gl[pixelFormat], gl[pixelType], pixels); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Texture should be backed by half-floats"); |
| } |
| } |
| } |
| |
| if (false) { |
| var m = wtu.makeImageFromCanvas(gl.canvas); |
| document.getElementById("console").appendChild(m); |
| document.getElementById("console").appendChild(document.createElement("hr")); |
| } |
| |
| return texture; |
| } |
| |
| function runTest(canvas) |
| { |
| var ctx = canvas.getContext("2d"); |
| |
| var cases = [ |
| { sub: false, flipY: true, semiTransparent: false, font: false, init: setCanvasToMin }, |
| { sub: false, flipY: false, semiTransparent: false, font: false }, |
| { sub: true, flipY: true, semiTransparent: false, font: false }, |
| { sub: true, flipY: false, semiTransparent: false, font: false }, |
| { sub: false, flipY: true, semiTransparent: true, font: false, init: setCanvasToMinSemiTransparent }, |
| { sub: false, flipY: false, semiTransparent: true, font: false }, |
| { sub: true, flipY: true, semiTransparent: true, font: false }, |
| { sub: true, flipY: false, semiTransparent: true, font: false }, |
| { sub: false, flipY: true, semiTransparent: false, font: false, init: setCanvasTo257x257 }, |
| { sub: false, flipY: false, semiTransparent: false, font: false }, |
| { sub: true, flipY: true, semiTransparent: false, font: false }, |
| { sub: true, flipY: false, semiTransparent: false, font: false }, |
| { sub: false, flipY: true, semiTransparent: true, font: false, init: setCanvasTo257x257SemiTransparent }, |
| { sub: false, flipY: false, semiTransparent: true, font: false }, |
| { sub: true, flipY: true, semiTransparent: true, font: false }, |
| { sub: true, flipY: false, semiTransparent: true, font: false }, |
| ]; |
| |
| // The font tests don't work with ALPHA-only textures since they draw to the color channels. |
| if (internalFormat != 'ALPHA') { |
| cases = cases.concat([ |
| { sub: false, flipY: true, semiTransparent: false, font: true, init: drawTextInCanvas }, |
| { sub: false, flipY: false, semiTransparent: false, font: true }, |
| { sub: true, flipY: true, semiTransparent: false, font: true }, |
| { sub: true, flipY: false, semiTransparent: false, font: true }, |
| ]); |
| } |
| |
| function runTexImageTest(bindingTarget) { |
| var program; |
| if (bindingTarget == gl.TEXTURE_2D) { |
| program = tiu.setupTexturedQuad(gl, internalFormat); |
| } else { |
| program = tiu.setupTexturedQuadWithCubeMap(gl, internalFormat); |
| } |
| |
| return new Promise(function(resolve, reject) { |
| var count = repeatCount; |
| var caseNdx = 0; |
| var texture = undefined; |
| function runNextTest() { |
| var c = cases[caseNdx]; |
| var imageDataBefore = null; |
| if (c.init) { |
| c.init(ctx, bindingTarget); |
| } |
| texture = runOneIteration(canvas, c.sub, c.flipY, c.semiTransparent, program, bindingTarget, texture, c.font); |
| // for the first 2 iterations always make a new texture. |
| if (count > 2) { |
| gl.deleteTexture(texture); |
| texture = undefined; |
| } |
| ++caseNdx; |
| if (caseNdx == cases.length) { |
| caseNdx = 0; |
| --count; |
| if (!count) { |
| resolve("SUCCESS"); |
| return; |
| } |
| } |
| wtu.waitForComposite(runNextTest); |
| } |
| runNextTest(); |
| }); |
| } |
| |
| runTexImageTest(gl.TEXTURE_2D).then(function(val) { |
| runTexImageTest(gl.TEXTURE_CUBE_MAP).then(function(val) { |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors"); |
| finishTest(); |
| }); |
| }); |
| } |
| |
| return init; |
| } |